CN108153185A - Programmable Li battery protection IC - Google Patents
Programmable Li battery protection IC Download PDFInfo
- Publication number
- CN108153185A CN108153185A CN201711279631.1A CN201711279631A CN108153185A CN 108153185 A CN108153185 A CN 108153185A CN 201711279631 A CN201711279631 A CN 201711279631A CN 108153185 A CN108153185 A CN 108153185A
- Authority
- CN
- China
- Prior art keywords
- circuit
- programmable
- software module
- parameters
- battery protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of programmable Li battery protection IC, including logic control circuit, software module circuit, MOS drive circuit, precision comparator detection circuit；The logic control circuit and software module circuit are interrelated, share a SDQ interface, are connect respectively with precision comparator detection circuit；The MOS drive circuit is connect with the logic control circuit.Programmable Li battery protection IC provided by the invention is due to using programmable software module circuit; with independent programmable port, Protection parameters can be changed according to actual demand, quickly meet client's different demands; type selecting flexibility is more preferable, without developing again.Protect simultaneously chip can secondary use, reduce inventory, slow-witted material problem, save cost.
Description
Technical field
The present invention relates to lithium battery technologies, especially relate to a kind of programmable Li battery protection IC.
Background technology
Existing tradition single lithium battery protection chip, chip interior framework are all using hardware module, without corresponding soft
Part module, Protection parameters curing cannot be changed arbitrarily.
Since chip does not have programmable port, Protection parameters cannot be changed arbitrarily, and type selecting flexibility is poor.Encounter without ginseng
Number model, need to develop protection chip (6-12 wheat harvesting periods), product development cycle is long, and product is poor for applicability, is also easy to produce inventory again
Slow-witted material.
Invention content
The main object of the present invention overcomes current chip not programmable to provide a kind of programmable Li battery protection IC
The problem of port, immutable Protection parameters.
The present invention provides a kind of programmable Li battery protection IC, including logic control circuit, software module circuit,
MOS drive circuit, precision comparator detection circuit；
The logic control circuit and software module circuit are interrelated, share a SDQ interface, respectively with high-precision ratio
It is connected compared with device detection circuit；
The MOS drive circuit is connect with the logic control circuit.
Preferably, the MOS drive circuit is connect by DO interfaces and CO interfaces with external circuits.
Preferably, the precision comparator detection circuit passes through VDD interfaces, VM interfaces and VSS interfaces and external circuits
Connection.
Preferably, the software module circuit, MOS drive circuit, precision comparator detection circuit are grounded.
Preferably, the software module circuit, for adjusting the COV parameters of lithium battery electric core.
Preferably, the software module circuit, for adjusting the CUV parameters of lithium battery electric core.
Preferably, the software module circuit, for adjusting the OCC parameters of lithium battery electric core.
Preferably, the software module circuit, for adjusting the Vshrt parameters of lithium battery electric core and Vcoc parameters.
Another aspect of the present invention, it is also proposed that a kind of lithium battery controls chip circuit, including above-mentioned any one can
Program Li battery protection IC.
The present invention provides a kind of programmable Li battery protection IC, including logic control circuit, software module circuit,
MOS drive circuit, precision comparator detection circuit；The logic control circuit and software module circuit are interrelated, share
One SDQ interface, connect respectively with precision comparator detection circuit；The MOS drive circuit and the logic control circuit
Connection.Programmable Li battery protection IC provided by the invention has independent due to using programmable software module circuit
Programmable port, Protection parameters can be changed according to actual demand, quickly meet client's different demands, type selecting flexibility is more
It is good, without developing again.Protect simultaneously chip can secondary use, reduce inventory, slow-witted material problem, save cost.
Description of the drawings
Fig. 1 is the structure diagram of the present invention one embodiment of programmable Li battery protection IC；
Fig. 2 is the structure diagram that lithium battery of the present invention controls one embodiment of chip circuit.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The embodiment of the present invention proposes a kind of programmable Li battery protection IC, including logic control circuit, software module
Circuit, MOS drive circuit, precision comparator detection circuit；
The logic control circuit and software module circuit are interrelated, share a SDQ interface, respectively with high-precision ratio
It is connected compared with device detection circuit；
The MOS drive circuit is connect with the logic control circuit.
With reference to Fig. 1, in the present embodiment, chip exterior includes VDD, VSS, CO, DO, VM, SDQ6 interfaces, the electricity with inside
Road is connected.Wherein, VDD：D=device represents the operating voltage (connecing power supply) of the meaning, i.e. device inside of device；VSS：S=
Series represents the commonly connected meaning, is often referred to circuit common ground terminal voltage (ground connection)；CO is carry-out；DO represents number
Word output interface；VM represents output AC signals；SDQ represents programmable interface.
Programmable Li battery protection IC internal circuit framework, mainly by precision comparator detection circuit, logic control
Circuit, MOS drive circuit, software module circuit composition.
Wherein, the MOS drive circuit is connect by DO interfaces and CO interfaces with external circuits.MOS drive circuit is grounded.
MOS drive circuit is connect with logic control circuit.
The precision comparator detection circuit is connect by VDD interfaces and VM interfaces and VSS with external circuits.In high precision
Comparator detection circuit is grounded.Precision comparator detection circuit is connect respectively with logic control circuit, software module circuit.
Software module circuit is associated with logic control circuit, shares SDQ interfaces.Software module circuit ground.
Wherein, logic control circuit mainly realizes the logic control between MOS drive circuit and precision comparator circuit, matches
It closes software module circuit and carries out logic management and control.When lithium battery charges, the vdd terminal of comparator detects that voltage reaches soft on battery
When threshold voltage (such as 4.30V) is protected in pre-set the overcharging of part module, one signal of output is given to logic control circuit, passes through
Logic control circuit handles logical relation, gives MOS drive circuit one logic control signal.DO is made to export low level, CO outputs
High level.Logic control circuit plays logic signal transmission processing, control action.
Software module circuit available for the analog signal for detecting precision comparator circuit, is converted into digital letter
Number, coordination logic control circuit realizes all Protection parameters settings of lithium battery.Software module circuit also has data storage simultaneously
It deposits, reads and writes, logic management and control effect.When software module circuit is connected with special equipment, programming interface is may also provide, facilitates lithium electric
The setting of pond Protection parameters.
MOS drive circuit available for coordinating logic control circuit, realizes DO, the low and high level output of CO ports drives outer
Meet MOS.Q1 in reference Fig. 2, Fig. 2, the conducting of Q2 are controlled with turning off by MOS drive circuit.When logic control circuit drives to MOS
When dynamic one, circuit overcharges protection signal, DO and the external Q1, Q2 of CO, N-channel MOS pipe (Fig. 2), the shutdown of Q1 low levels, Q2 high electricity
Flat conducting so as to cut off charge circuit, realizes that major loop switches on-off control action.
Precision comparator detection circuit, for by external VDD, the detected signal voltage of tri- ports of VM, VSS,
Comparison through internal each precision comparator is handled, and then coordinates software module circuit (preset parameter), the output phase pair
The signal voltage answered is given to logic control circuit.For example, when VM detects an overcurrent protection threshold value, such as 3A, through inside
After comparator compares reversion, one signal of output is given to logic control circuit.All protection voltages of lithium battery can be realized in this way
Detection, output action.
The chip further includes VSS interfaces, the VSS interfacing grounds.
Optionally, the software module circuit, for adjusting the COV parameters of lithium battery electric core.
In the present embodiment, COV parameters include Threshold (threshold value), Delay (delay), Recovery (recovery) three
Parameter overcharges protection for being provided for lithium battery.
Optionally, the software module circuit, for adjusting the CUV parameters of lithium battery electric core.
In the present embodiment, CUV parameters include Threshold (threshold value), Delay (delay), Recovery (recovery) three
Parameter, for providing Cross prevention for lithium battery.
Optionally, the software module circuit, for adjusting the OCC parameters of lithium battery electric core.
In the present embodiment, OCC parameters include two groups of parameters, respectively OCC1 parameters and OCC2 parameters.OCC1 parameters and
OCC2 parameters include two Threshold (threshold value), Delay (delay) parameters, for providing overcurrent protection for lithium battery.
Optionally, the software module circuit, for adjusting the Vshrt parameters of lithium battery electric core and Vcoc parameters.
In the present embodiment, Vshrt parameters include two Threshold (threshold value), Delay (delay) parameters, for for lithium
Battery provides load short circuits protection.
Vcoc parameters include Threshold (threshold value), Delay (delay), three parameters of Recovery (recovery), for for
Lithium battery provides charger overvoltage protection.
It is the application example of a programmable Li battery protection IC below.Due to containing software module circuit, Ke Yitong
The software module circuit (can also write EPROM circuit modules) of SDQ ports and inside is crossed, with reference to software interface, completes protection ginseng
Several direct rewritings.
1 one embodiment of table may be programmed the parameter setting of Li battery protection IC
Under normal circumstances, lithium battery has different models, and corresponding different capacity needs that different control is set to join
Number.As shown in table 2, table 2 is the parameter configuration of different model chip.
The parameter configuration of 2 different model chip of table
In this way, using the programmable Li battery protection IC of the embodiment of the present invention, without the protection core for using different model
Piece, it is only necessary to pass through software interface, simple operations, the lithium battery of modification related Protection parameters, then applicable different model.This hair
The programmable Li battery protection IC of bright embodiment can be read and write repeatedly, and data preserve the time limit up to 10 years or even 20 years or more.
With reference to Fig. 2, another aspect of the present invention, it is also proposed that a kind of lithium battery controls chip circuit, including above-mentioned arbitrary
The programmable Li battery protection IC of one.
In the present embodiment, SDQ interfaces are directly communicated with the outside in lithium battery controls chip circuit.Therefore, if chip
Parameter setting mistake, can also on lithium battery direct editing, corrected parameter.
The present invention provides a kind of programmable Li battery protection IC, including logic control circuit, software module circuit,
MOS drive circuit, precision comparator detection circuit；The logic control circuit and software module circuit are interrelated, share
One SDQ interface, connect respectively with precision comparator detection circuit；The MOS drive circuit and the logic control circuit
Connection.Programmable Li battery protection IC provided by the invention has independent due to using programmable software module circuit
Programmable port, Protection parameters can be changed according to actual demand, quickly meet client's different demands, type selecting flexibility is more
It is good, without developing again.Protect simultaneously chip can secondary use, reduce inventory, slow-witted material problem, save cost.
The foregoing is merely the embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification for all within the spirits and principles of the present invention, being made,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (9)
1. a kind of programmable Li battery protection IC, which is characterized in that driven including logic control circuit, software module circuit, MOS
Dynamic circuit, precision comparator detection circuit；
The logic control circuit and software module circuit are interrelated, share a SDQ interface, respectively with precision comparator
Detection circuit connects；
The MOS drive circuit is connect with the logic control circuit.
2. programmable Li battery protection IC according to claim 1, which is characterized in that the MOS drive circuit passes through
DO interfaces and CO interfaces are connect with external circuits.
3. programmable Li battery protection IC according to claim 1, which is characterized in that the precision comparator detection
Circuit is connect by VDD interfaces, VM interfaces and VSS interfaces with external circuits.
4. programmable Li battery protection IC according to claim 1, which is characterized in that the software module circuit, MOS
Driving circuit, precision comparator detection circuit are grounded.
5. programmable Li battery protection IC according to claim 1, which is characterized in that the software module circuit is used
In the COV parameters for adjusting lithium battery electric core.
6. programmable Li battery protection IC according to claim 1, which is characterized in that the software module circuit is used
In the CUV parameters for adjusting lithium battery electric core.
7. programmable Li battery protection IC according to claim 1, which is characterized in that the software module circuit is used
In the OCC parameters for adjusting lithium battery electric core.
8. programmable Li battery protection IC according to claim 1, which is characterized in that the software module circuit is used
In the adjusting Vshrt parameters of lithium battery electric core and Vcoc parameters.
9. a kind of lithium battery controls chip circuit, which is characterized in that includes the programmable lithium battery of claim 1-8 any one
Protect chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279631.1A CN108153185A (en) | 2017-12-06 | 2017-12-06 | Programmable Li battery protection IC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279631.1A CN108153185A (en) | 2017-12-06 | 2017-12-06 | Programmable Li battery protection IC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108153185A true CN108153185A (en) | 2018-06-12 |
Family
ID=62466026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711279631.1A Pending CN108153185A (en) | 2017-12-06 | 2017-12-06 | Programmable Li battery protection IC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108153185A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553540A (en) * | 2003-06-06 | 2004-12-08 | 比亚迪股份有限公司 | Adjuster for lithium cell protective circuit protective threshold value |
| CN101207276A (en) * | 2006-12-19 | 2008-06-25 | 比亚迪股份有限公司 | Protection system for series connection lithium cell |
| CN201667547U (en) * | 2010-02-02 | 2010-12-08 | 上海长园维安电子线路保护股份有限公司 | Lithium battery protection module with embedded programmable switch type charging function |
| CN201821092U (en) * | 2010-10-21 | 2011-05-04 | 天津光电通信技术有限公司 | Protective circuit for lithium power battery packs |
| CN102064585A (en) * | 2011-01-06 | 2011-05-18 | 田剑彪 | Integrated circuit (IC) with adjustable protection threshold for protecting a plurality of lithium batteries |
| CN202121027U (en) * | 2011-07-12 | 2012-01-18 | 广州明美电子有限公司 | Battery with high-accuracy current protection circuit |
| CN103501026A (en) * | 2013-09-17 | 2014-01-08 | 武汉大学 | Lithium battery management system based on Labview |
| CN103532106A (en) * | 2013-11-04 | 2014-01-22 | 武汉大学 | Single lithium battery protection chip with accurate delay and dormancy functions |
-
2017
- 2017-12-06 CN CN201711279631.1A patent/CN108153185A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553540A (en) * | 2003-06-06 | 2004-12-08 | 比亚迪股份有限公司 | Adjuster for lithium cell protective circuit protective threshold value |
| CN101207276A (en) * | 2006-12-19 | 2008-06-25 | 比亚迪股份有限公司 | Protection system for series connection lithium cell |
| CN201667547U (en) * | 2010-02-02 | 2010-12-08 | 上海长园维安电子线路保护股份有限公司 | Lithium battery protection module with embedded programmable switch type charging function |
| CN201821092U (en) * | 2010-10-21 | 2011-05-04 | 天津光电通信技术有限公司 | Protective circuit for lithium power battery packs |
| CN102064585A (en) * | 2011-01-06 | 2011-05-18 | 田剑彪 | Integrated circuit (IC) with adjustable protection threshold for protecting a plurality of lithium batteries |
| CN202121027U (en) * | 2011-07-12 | 2012-01-18 | 广州明美电子有限公司 | Battery with high-accuracy current protection circuit |
| CN103501026A (en) * | 2013-09-17 | 2014-01-08 | 武汉大学 | Lithium battery management system based on Labview |
| CN103532106A (en) * | 2013-11-04 | 2014-01-22 | 武汉大学 | Single lithium battery protection chip with accurate delay and dormancy functions |
Non-Patent Citations (1)
| Title |
|---|
| 无锡中星微电子有限公司: "VA7022_DS_1.2_CH-中星微双节锂电池保护芯片数据手册", 《百度文库》 * |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180612 |